What is columnar epithelium?

Some articles on epithelium, columnar epithelium, columnar:

Cervix - Histology
... The epithelium of the cervix is varied ... The ectocervix (more distal, by the vagina) is composed of nonkeratinized stratified squamous epithelium ... (more proximal, within the uterus) is composed of simple columnar epithelium ...
Norman Barrett - Career
... sphincter, which is lined by squamous epithelium" ... In this paper, Barrett suggested that the finding of an oesophagus lined with columnar epithelium (rather than the usual squamous epithelium) was due to the ... Allison and Johnstone argued that this columnar epithelium–lined structure was oesophagus and not stomach, and suggested that ulcers in this structure be called "Barrett's ulcers" ...
Cuboidal Epithelial Cell
... They may exist in single layers (simple cuboidal epithelium) or multiple layers (stratified cuboidal epithelium) depending on their location (and thus function) in the body ... Histology Epithelial tissue (TH H2.00.02) Epithelial cells Columnar epithelial cell Cuboidal epithelial cell Squamous epithelial cell Surface epithelium Simple squamous epithelium Endothelium ...
Columnar
... In biology, columnar refers to the shape of epithelial cells that are taller than they are wide ... Form follows function in biology, and columnar morphorphology hints at the functions of the cell ... Columnar cells are important in absorption and movement of mucus ...